Adjustable hands-free mounting apparatus and subcombinations for holding tablet PCs and other devices in various environments

ABSTRACT

The present invention relates to an apparatus for adjustably mounting a tablet PC or other electronic device for hands-free emplacement in a diverse range of environments. This continuation-in-part application emphasizes varieties of a subcombination apparatus that provides integrated mounting and adjusting means for use either with the present invention or with separate unspecified other devices and objects. The apparatus of the present invention attaches to various surfaces via a mounting means comprising an adjustable suction cup connected to hanger rotatable in multiple dimensions wherein the movement of adjustable parts is regulated by built-in, easily-reversible locking mechanisms. The invention, used with or without the present subcombination apparatuses, enables stable and precise positioning of personal electronic devices in almost any situation where rapid, impromptu, or reversible deployment is desired.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a continuation-in-part of, and claims the priority benefit of, pending U.S. application Ser. No. 13/220,309 filed Aug. 29, 2011, the entirety of which is incorporated by reference herein.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to an apparatus for adjustably mounting a tablet PC or other personal electronic device for hands-free emplacement in a diverse range of environments. More particularly, the apparatus of the present invention attaches to various surfaces via a mounting means that is flexibly connected to a separately adjustable frame for holding a tablet PC, where the ultimate emplacement of the tablet PC is finely regulated via multiple, independently adjustable features of the apparatus. The apparatus enables stable and precise positioning of any tablet PC on even the most unsteady and irregular substrates, providing exceptional utility during vehicular travel, outdoor events, natural disasters, and in any public or private setting even under harsh environmental conditions. This particular continuation in part application emphasizes varieties of a subcombination apparatus that provides integrated mounting and adjusting means for use with the frame of the present invention or in combination with other distinct apparatuses.

2. Description of the Related Art

The following review of related art is intended to provide edifying examples of problems and pitfalls in the design and use of personal computer mounting apparatuses. No admission is made that any reference, including any patent or patent document, cited in this specification constitutes prior art with respect to the present invention. Applicant reserves the right to challenge the accuracy and pertinence of any of the documents cited herein.

The “tablet PC” is a portable personal computer (PPC) generally characterized by a prominent touch-screen interface and a thin rectangular geometry that is rapidly becoming the preferred personal digital accessory (PDA) among consumers. Tablet PCs emphasize the capacity for powerful full-range personal computing and necessarily possess larger dimensions and heavier weights than prior PDAs, which generally comprise cellular phones, music players, digital cameras, or GPS navigators. The PDAs in the prior art prioritize their respective consumer electronics functions and marginalize personal computing capacity, placing a premium on achieving miniaturization rather than versatility. Although these distinctions are merely trends and not rules, and are not intended to limit the scope of the present invention, they are manifested in the failure of prior art PDA mounting devices to accommodate the substantially greater bulk and weight of tablet PCs. Prior art mounting apparatuses are too fragile for, too unstable for, and fundamentally incompatible with tablet PCs and related PPCs.

A popular solution to the mounting requirements of tablet PCs in a stationary environment on a horizontal surface is disclosed in U.S. Pat. No. 7,969,732 to Noble. The Noble device comprises a groove in a pedestal which receives an edge of a tablet PC, holding it upright by action of gravity alone. Although convenient and rapidly assembled, the Noble device provides no stabilizing function to hold the mounted tablet PC in a moving environment, i.e., during travel, or upon a non-horizontal surface. U.S. Pat. No. 5,607,135 to Yamada presents a similar tablet stand concept having an adjustable angle of support, but which is still susceptible to dislodgment during travel-associated movement.

The particular difficulty of mounting a tablet PC in a moving vehicle is expressed in the elaborate solution proposed in U.S. Pat. App. No. 2011/0114686 to Franzi. The Franzi invention resembles a child safety chair, occupying an entire passenger seat in a vehicle, having a swiveling armature for bolting or engaging the back of a tablet PC or other portable computer. Although secure against lateral motion and hard-braking, the Franzi invention occupies an excessive amount of space inside the travel compartment and requires a driver to look away from the road in order to view the screen.

U.S. Pat. No. 7,861,985 to Galvin discloses an apparatus for securing small, lightweight PDAs to various surfaces, the apparatus comprising a mounting means in the form of a common spring clip that is in turn connected by a flexible gooseneck to a universal belt clip that attaches to the PDA. Although the Galvin invention is heralded as a travel accessory, the security of the mounting attachment is dependent upon the grip of the spring clip, which is notorious for slipping off of surfaces unless the surfaces possess precisely square, non-slippery, protruding edges less than about 2-3 inches wide. Such surfaces are rarely present inside automobiles, airplanes, buses, and most other common means of travel. Instead, the Galvin invention in practice must be clipped to the curvy plastic surfaces of dashboards, consoles, meal trays, or arm-rests which are almost always coated in some form of slippery organic solvent or substance and further destabilized by vibration and turbulence during travel. Another drawback of this invention is the obtrusiveness of the long gooseneck, which not only acts as a lever, placing greater destabilizing force upon the spring clip in proportion to the weight of the PDA mounted on its proximal end, but which also is not adjustable lengthwise, and therefore becomes an inconvenient obstacle, preventing access to the area behind the mounted computer and intruding undesirably into the interior of the cabin or space occupied by a traveling user. The Galvin device and the numerous related prior art devices discussed in the Galvin disclosure may be suitable for holding small music players or smart phones, but they cannot be reliably used for mounting a relatively large and heavy tablet PC of the types that predominate in the marketplace today, particularly inside a car or other moving vehicle.

Clips or frames attached directly to suction cups are the predominant method for reversibly mounting PDAs including GPS navigation devices in automobiles, and on non-horizontal surfaces. U.S. Pat. App. Pub. No. 2011/0073743 to Shamie describes a device virtually identical to the Galvin device except the spring clip has been replaced with a suction cup. U.S. Pat. App. Pub. No. 2010/0274483 to Wikel describes a suction cup that attaches to the inside of the windshield or to the top surface of a dashboard, accommodating a PDA via a connector adjacent to the suction cup. Neither of these prior art devices are suitable for holding a tablet PC because of its relatively large width and heavy weight compared to GPS devices and smart phones. With regard to travel use, the interior slope of the windshield in most cars limits the size of a mounted device to 3-4 inches if mounted above the dashboard, and the heavy weight of a tablet PC will overcome the strength of any gooseneck arm if extended horizontally away from the windshield into the passenger area beyond the dashboard.

Scant incentives exist for promoting the development of greater weight and size capacities in existing dashboard clips and windshield suction cup devices for good reason, because the bulk of heavier, larger devices such as tablet PCs would obscure a significant portion of a driver's view through the windshield, and when such bulky devices are extended by a gooseneck or other arm several inches into the passenger compartment in order to space them sufficiently far away from the windshield that they can present their screens vertically, they become a distracting and potentially dangerous physical obstruction. Consequently, most larger PPCs and video screens are installed permanently, and not removeably, in the center consoles of a dashboard, rear panels of a seatback, or panels attached to the ceiling.

U.S. Pat. No. 7,894,003 to Chang exemplifies the permanently mounted type of apparatus that is commonly used to hold computer devices and screens in the ceiling or seat-backs of vehicles ranging from automobiles to airplanes. Unfortunately, the Chang device and its related inventions are not adapted for portability or for reversible assembly, and therefore they are not amenable to a traveler who desires to quickly remove the screen and hardware components when exiting a vehicle or to quickly install them upon entering a vehicle. Furthermore, these mounting devices are not particularly suitable for touch-screen control since they are mounted overhead, beyond the comfortable reach of a seated person, or alternatively when they are mounted in a seatback, excluding access from the driver's seat and front passenger seat of a car, which is where the majority of consumers would prefer to have access to their tablet PCs while traveling.

Suction cup mounting devices which suspend any electronic device in front of a windshield present particular hazards to the passengers of the vehicle in the event of an accident. For example, U.S. Pat. No. 7,857,268 to Chiu provides a robust mounting apparatus for PDAs that contains a rigid metal frame suspended in a windshield by two suction cups. Not only does the Chiu invention significantly obstruct the view through the windshield, but also it represents a grave hazard if any accident should occur that resulted in the shattering of the windshield, which would dislodge the heavy metal mounting device and send it hurling through the passenger compartment at head-level.

As a result of the shortfalls in the prior art, an unmet need exists for an apparatus that permits the rapid, convenient, versatile, and finely adjustable emplacement of PPCs in diverse environments to enable convenient and reliable operation during travel, fieldwork, rescue operations, and other endeavors where a stable desklike surface is not likely to be available and where alternation between locations is expected. Any satisfactory solution to this unmet need requires that the screen of a tablet PC be positionable in a substantially stable and accessible orientation regardless of the underlying substrate. In particular, a user traveling in the passenger compartment of a vehicle must be able to view and manipulate the graphical user interface (GUI) of the tablet PC screen while seated and facing forward. The solution to this unmet need must provide a mounting apparatus that resists the destabilizing effects of turbulence, vibrations, lateral movement, and other disruptions without being so massive as to significantly impede a driver's view through a windshield, increase the clutter of a compartment, or obstruct the accessibility of an area. The ideal apparatus should be, in some embodiments, easily reversibly mountable so that a user can quickly move from one location or vehicle to another, while in other embodiments the mounting means should emphasize strength and permanence.

SUMMARY OF THE INVENTION

The present invention satisfies the needs described above. This invention provides an apparatus for adjustable mounting and emplacement of tablet PCs and other PPCs in any location. The apparatus can be configured to securely hold all commercially available tablet PCs and is not limited in applicability to any particular types of mounting substrates or conditions. In its most basic conceptualization, the invention comprises (1) a mounting means for attachment to various surfaces, flexibly connected to (2) an adjustably positionable frame for holding a tablet PC in a desired orientation. The flexible relationship between a dedicated mounting means and an independently positionable frame enhances the precision and security by which a tablet PC can be reversibly installed upon non-horizontal surfaces. The apparatus of the present invention thus enables the optimized emplacement of a tablet PC permanently or temporarily in any space, no matter how confined or irregular, making it exceptionally well-suited for use during travel in moving vehicles, participation in rigorous activities, reliability in rugged conditions, and adaptability to unforeseen circumstances.

In a preferred embodiment, the apparatus comprises a suction cup assembly as the mounting means connected to a rigging from which adjustable-length cordage descends to the top edge of a rectangular frame. The cordage suspends the frame vertically, while the frame holds a tablet PC between opposing lateral ledges or clips, such that the tablet PC touch screen is presented and maintained in an upright, forward-facing, unobstructed orientation. A user of the apparatus adjusts the cordage to regulate the distance between the mounting means and the frame to establish a preferred operating position. Additional stabilizing elements on the frame may interact with surfaces separate from the attachment substrate of the mounting means to further adjust and stabilize the emplacement of the tablet PC. The tablet PC may be conveniently removed from and inserted into the frame of the apparatus without significant effort on the part of the user and without significant assembly or disassembly of any part of the apparatus.

The present invention contemplates that a popular use for tablet PCs and related PPCs is for navigation during vehicular travel by virtue of navigation hardware and software contained therein, and the invention performs by enabling easy access by a driver or passenger of a vehicle to the screen of the tablet PC in order to operate it in a safe manner during travel. The present invention resides not merely in any one of the features set forth in this specification, but also in the particular combination of all of the features and improvements claimed.

The forgoing summary has outlined some features consistent with the present invention in order that the following detailed description thereof may be better understood, and in order that the present contribution to the art may be better appreciated. The present invention is not limited in its application, details, or components merely to those set forth in the following description and illustrations. Methods and devices consistent with the present invention are capable of other embodiments. Also, the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting unless explicitly stated as such.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a preferred embodiment of the apparatus.

FIG. 2A is a perspective view of a preferred embodiment of the apparatus showing an alternative arrangement of clips on the frame.

FIG. 2B is a perspective view of a preferred embodiment of the apparatus in which the clips are elongated on the frame.

FIG. 3 is a perspective view of a preferred embodiment of the apparatus holding a tablet PC within the frame.

FIG. 4A is a perspective view of one example of a type of versatile stabilizer attachment means.

FIG. 4B is an end view of one example of a type of versatile stabilizer attachment means.

FIG. 5A is a perspective view of the frame of the apparatus illustrating a simple resilient compression means for stabilizing a tablet PC between the clips of the frame.

FIG. 5B is a front view of the frame of the apparatus illustrating a complex resilient compression means for stabilizing a tablet PC between the clips of the frame.

FIG. 6 is a rear perspective view of a second preferred embodiment of the apparatus having an adjustment means attached to the frame rather than at the mounting means.

FIG. 7 is a rear perspective view of a third embodiment of the apparatus wherein the adjustment means is a cord clamp.

FIG. 8 is a perspective view of the invention being used to mount a tablet PC in the front compartment of an automobile.

FIG. 9 is a side view of the invention being used to mount a tablet PC in the front compartment of an automobile.

FIG. 10 is a perspective view of the invention mounted on the back of a car seat.

FIG. 11 is a front perspective view of a fourth embodiment of the invention having adjustable frame dimensions.

FIG. 12 is a rear perspective view of the fourth embodiment of the invention having adjustable frame dimensions.

FIG. 13 is a top view of the frame showing the movement of slats during adjustment of the horizontal length and vertical height of the frame, where the frame size is being increased by moving the slats outwards from the center of the frame.

FIG. 14 is a second top view of the frame showing the movement of slats during adjustment of the horizontal length and vertical height of the frame, where the frame size is being reduced by moving the slats inwards towards the centerpoint of the frame.

FIG. 15 is a front perspective view of a preferred embodiment of a mounting and adjusting subcombination apparatus comprising an integrated mounting means, hanger, and tensioning element.

FIG. 16 is a front perspective view of a subpart of the subcombination apparatus, said subpart comprising a dowel having a terminal knob at its proximal end and being attached to a suction cup at its distal end.

FIG. 17 is a front perspective view of the preferred embodiment of the mounting and adjusting subcombination apparatus depicting the lever in a closed position such that the dome having teeth impinges on the suction cup.

FIG. 18 is a rear perspective view of the preferred embodiment of the mounting and adjusting subcombination apparatus depicting the lever in a closed position such that the dome having teeth impinges on the suction cup.

FIG. 19A is a front perspective view of a fifth preferred embodiment of the tablet PC mounting apparatus including the mounting and adjusting subcombination apparatus attached by its suction cup to a surface in the environment and with the lever closed.

FIG. 19B is a front perspective view of the fifth preferred embodiment of the tablet PC mounting apparatus including the mounting and adjusting subcombination apparatus attached by its suction cup to a surface in the environment, said subcombination apparatus having the lever open and having been rotated clockwise around the dowel by about fifteen degrees.

FIG. 20 is a plan view, inverted vertically, of the rear side of the preferred embodiment of the mounting and adjusting subcombination apparatus illustrating the inner components of the shaft-locking means for alternatively preventing and allowing rotation of the rod (suction cup and dowel, inter alia, omitted).

FIG. 21 is a partial section view of the shaft-locking means.

FIG. 22 is a partial section view of the dowel-locking means.

DETAILED DESCRIPTION OF THE DRAWINGS

Throughout all the figures, same or corresponding elements are indicated by the same reference numerals. FIG. 1 is a perspective view of a preferred embodiment of the apparatus 100 in which a mounting means 11 comprises a suction cup assembly. The mounting means 11 may alternatively comprise a magnet, adhesive, bracket, screws, ball and socket, spring clip, and any other structure tending to achieve attachment to a surface. The mounting means 11 may also, or alternatively, comprise any elements useful for attachment of the apparatus 100 to a feature on a surface or in the environment. For example, although the suction cup assembly of the mounting means 11 depicted in FIG. 1 is ideal for attachment to a substantially smooth surface, the mounting means 11 in other embodiments of the invention may be adapted for hanging the apparatus 100 on a hook or similar protrusion, or for suspension of the apparatus 100 from the headrest of a car seat or from a rear-view mirror.

The mounting means 11 is connected to a hanger 12, either directly or via a connector element 13. The hanger 12 is attached to cordage 15, and said cordage 15 is connected to a frame 20 for holding a tablet PC or other personal computing device. The cordage 15 is variably connected to an adjustment means 14 for adjusting the length of the cordage 15 that extends between the hanger 12 and the frame 20, thereby enabling the adjustment of the position of the frame 20 relative to the position of the mounting means 11. In other words, the adjustment means 14 adjusts the effective length of the cordage 15 to raise and lower the frame 20. The operation of the adjustment means may be modulated by the action of a tensioning element 16. Generally, the tensioning element 16 provides a means for alternatively preventing or allowing the operation of the adjustment means 14, thereby preventing or allowing the adjustment of the effective length of the cordage 15, and thereby preventing or allowing the adjustment of the position of the frame 20 in relation to the position of the mounting means 11.

In the embodiment of FIG. 1, the hanger 12 is a horizontal rod attached to the connector element 13 in proximity to the mounting means 11. The cordage 15 comprises two strands of filament, wherein each strand of filament connects at one end to the hanger 12 and at an opposite end to the frame 20. The adjustment means 14 comprises a means for wrapping and unwrapping the cordage 15 about the rod of the hanger 12. In particular, the adjustment means 14 comprises a localized attachment between an end of the cordage 15 where the cordage 15 is bound to an end portion of the hanger 12 and where the cordage 15 can be wrapped and unwrapped around an end portion of the hanger 12. Said wrapping and unwrapping of the cordage 15 around the hanger 12 effectively alters the length of the cordage 15 which extends to the frame 20, thereby enabling the raising and lowering of the position of the frame 20 relative to the position of the mounting means 11. The cordage 15 as shown in FIG. 1 extends directly vertically downwards towards the frame 20, at a ninety (90) degree angle relative to the horizontal axis of the frame 20, but this is not limiting, and the cordage 15 may in practice extend at any angle from either the hanger 12 or the frame 20.

In the embodiment of FIG. 1, the horizontal rod of the hanger 12 is held in place by, and sits within, the connector element 13. The horizontal rod of the hanger 12 is rotatable along its longitudinal axis within the connector element 13, except when said rotation is prevented by the action of a tensioning element 16. The tensioning element 16 is a thumbscrew threaded through the connector element 13 that impinges upon the rotatable rod of the hanger 12 to prevent it from rotating within the connector element 13 when in a tightened position. Loosening of the tensioning element 16 permits the rotation of the rod of the hanger 12 and is accomplished by rotating the thumbscrew through several revolutions a counterclockwise direction. Tightening of the tensioning element 16 prevents the rotation of the rod of the hanger 12 and is accomplished by turning the thumbscrew in a clockwise direction. Rotation of the rod of the hanger 12 enables the adjustment of the length of the cordage 15 by causing the cordage 15 to wind or unwind around the end portion of the hanger 12 comprising the adjustment means 14. In alternative embodiments, the tensioning element 16 may be a constricting collar attached to the connector element 13 where the rotatable rod of the hanger 12 exits the connector element 13, said constricting collar being made to grip the rod of the hanger 12 to thereby prevent its rotation.

When a tablet PC is held by the frame 20, the position of the tablet PC may be lowered by extending the length of the cordage 15 between the horizontal rod of the hanger 12 and the frame 20. In the preferred embodiment of FIG. 1, the length of the cordage 15 is extended by first loosening the screw of the tensioning element 16, and then by rotating the horizontal rod of the hanger 12 about its longitudinal axis, thereby unwinding the cordage 15 about the adjustment means 14 of the rod of the hanger 12, and thereby moving the frame 20 farther away from the mounting means 11. Rotation of the rod of the hanger 12 may be achieved, for example, by the application of downwards force upon the cordage 15 which is wrapped around the adjustment means 14 of the rod of the hanger 12. The downwards force may result from the weight of the frame 20 or from manual application by a user. In order to raise the height of the tablet PC, a person manually turns the rotatable rod of the hanger 12 while the tensioning element 16 is in a loosened position. When the tablet PC rests in the frame at a position satisfactory to the user, the tensioning element 16 is tightened to prevent further rotation of the rod of the hanger 12.

Alternatively, the length of the cordage 15 may be manually adjusted by wrapping or unwrapping cordage 15 around the portion of the hanger 12 comprising the adjustment means 14 to effect a change in the positioning of the frame 20. Such a method would be useful in situations when it is not feasible to adjust the tensioning element 16 or to rotate the rod of the hanger 12, or in embodiments that do not include a tensioning element 16 or do not employ a rotatable rod as the hanger 12. In some embodiments, the adjustment means 14 is a motorized spool that adjusts the length of the cordage 15 by winding and unwinding under electronic control, and the hanger 12 may comprise a hollow tube through which the cordage 15 is threaded rather than a rotatable rod around which the cordage 15 is wrapped. Alternatively, in further embodiments there may be no rod at all, and the hanger 12 comprises only a motorized spool attached to the connector element 13 and/or the mounting means 11. The tensioning element 16 may also comprise electromagnetic resistance or other resistance within a motor which tends to resist rotation of a means for spooling cordage.

The cordage 15 may comprise any equivalent of a cord, strap, rope, or wire that is sufficiently durable to support the weight of the frame 20 when holding a PPC. The cordage 15 may comprise various materials appropriately selected for the location in which the user desires to mount the apparatus 100. If the apparatus 100 is used in a vehicle, for example, the cordage 15 can be thin and/or non-opaque, e.g., monofilament fishing line, so as not to obscure the driver's view. If the apparatus 100 is to be mounted from a seat in a car, airplane, or other seating area, such that the frame 20 is situated against the rear side of said seat for use by a person located behind said seat, the cordage 15 may comprise straps made of fabric. Alternatively, the cordage 15 may be any nylon, polyester, cotton, or similar material in the form of a line or strap.

A four-sided frame 20 is connected to the cordage 15. The frame 20 may be made of any material such as plastic, rubber, paper, woven fabric, or metal. In FIG. 1 the frame 20 is depicted having a solid inflexible plastic construction, but the invention comprises frames made of flexible materials like rubber, canvass, nylon, cotton, or the like, which may or may not be reinforced by rigid internal supporting members to provide consistency of shape.

Attached to the frame 20 near each of its corners are four clips, arranged in two pairs, described as an upper clip pair 21 and a lower clip pair 22. Each of the clip pairs 21 or 22 comprises two individual clips facing inwards relative to the perimeter of the frame 20. The clips of the upper clip pair 21 face inwards towards each other along the x-axis or horizontal axis of the frame 20. Conversely, the clips of the lower clip pair 22 face upwards along the y-axis or vertical axis of the frame 20. This substantially transverse orientation of the clip pairs 21 and 22 enhances the stability of the attachment between the frame 20 and the tablet PC, particularly during travel, because it allows the clips to hold the tablet PC from the bottom and sides simultaneously in order to prevent the tablet PC from sliding off the frame 20 during horizontal and lateral motion. This advantageous feature of the invention, having dual clip pairs in substantially transverse orientations located near the corners of a frame, provides maximum attachment stability for a tablet PC while using a minimum of materials.

Sometimes, using the minimum amount of materials is not advantageous, and so each of the clips may be wider than those shown in FIG. 1. Whereas the clips shown in FIG. 1 may be, for example, 0.25 to 1.0 inches wide, clips in other embodiments could be several inches wide and may even extend for substantially the full length of any side of the frame 20. Alternatively, as shown in FIG. 2A, an additional set of clips, clip pair 23, can be attached in a parallel orientation below clip pair 21 in embodiments where increased support for the tablet PC is desired. On the bottom edge of the frame 20, the two clips of clip pair 22 may be merged into a single clip 24. In embodiments of the invention in which conservative use of materials is not desired, clips may extend substantially along the entire lengths of the left, right, and bottom edges of the frame 20, as shown in FIG. 2B.

FIG. 3 illustrates the apparatus 100 holding a tablet PC 3 within the frame 20. A tablet PC 3 slides into position on the frame 20 when lowered into the gap between the clips of the upper clip pair 21 until the bottom edge of the tablet PC 3 comes to rest upon the clips of the lower clip pair 22. Removal of the tablet PC 3 from the frame 20 of the apparatus 100 is accomplished by simply lifting the tablet PC 3 up through the gap between the clips of the upper clip pair 21. While prior art mounting devices are defeated by the bulk and weight of tablet PCs, the present invention capitalizes on said bulk and weight to increase the security of the attachment between the tablet PC 3 and the clips of the lower clip pair 22 upon which it rests. The weight and dimensions of a typical tablet PC thus render it so firmly attached to the frame 20 of the apparatus 100 that only a complete inversion of the apparatus 100 can dislodge the tablet PC 3 from its attached position. Even this unlikely contingency can be easily corrected by the addition of further clips or fastening means at the top edge of the frame 20, as contemplated for other embodiments of the present invention.

FIG. 3 demonstrates that the tablet PC 3 may be positioned at a distance from the actual site of attachment between the mounting means 11 and some surface or object in the environment. Adjustment of the actual position of the tablet PC 3, by virtue of its confinement within the frame 20, is easily regulated by adjusting the effective length of the cordage 15. The precise emplacement of the tablet PC 3 may be further regulated by stabilizers 26 attached to the rear surface of the frame 20. Stabilizers 26 may comprise suction cup assemblies and other structures tending to achieve attachment to a surface. Stabilizers 26 may interact with the same surface to which the mounting means 11 attaches, or to different surfaces and structures in the environment. Multiple stabilizers 26 may be attached to the rear side of the frame 20 and they may be adapted for use in any general or specific location.

For example, when the apparatus 100 is mounted in an automobile and the mounting means 11 is attached to a windshield, the frame 20 holding the table PC 3 may hang suspended to a position near the lower console of the dashboard. One or more stabilizers 26 may interact with the dashboard or console of the automobile to prevent the frame 20 and tablet PC 3 from swaying, twisting or otherwise shifting position during movement of the vehicle. Various custom stabilizers 26 may be specifically manufactured for application in designated conditions or locations, such as in specific models of automobiles, for example, where they may be designed according to the particular contours of the dashboard or center console. Stabilizers 26 are intended not only to facilitate attachment, but also to adjustably control the orientation of the frame 20 and tablet PC 3 to achieve fine control over the angle and direction of emplacement during use.

Stabilizers 26 may be swappable by virtue of a versatile stabilizer attachment means 25, such that the frame 20 of a single apparatus 100 may be equipped with different stabilizers 26 at different times according to specific needs. FIGS. 4A and 4B show a perspective view and an end view, respectively, of an example of a versatile stabilizer attachment means 25. In this embodiment, the stabilizer attachment means 25 comprises a bar having a channeled extrusion or slot 27 on a side facing away from the frame 20, wherein the slot 27 receives a knobbed end 28 of a stabilizer 26 such as a suction cup. If the apparatus 100 is moved to a locale where an adhesive or a magnet would be superior to a suction cup as a stabilizer 26, then adhesives or magnets, each having knobs 28 compatible with the slot 27 of the stabilizer attachment means 25, can be swapped in while the suction cups are swapped out by sliding said stabilizers 26 along the slot 27 until they exit the bottom of the bar. One or more instances of such a versatile stabilizer attachment means 25 may be attached to the rear surface of the frame 20, preferably one per side.

Further embodiments of the invention may comprise a resilient compression means 30 for gripping the lateral edges of a tablet PC when inserted into the frame 20, or for effectively increasing the pressure applied by the clips to the tablet PC 3 inside the frame 20. FIG. 5A shows two iterations of a resilient compression means 30 attached to the interior surface of each clip of clip pair 21. The resilient compression means 30 in this embodiment comprises a flexible metal band 31 attached to the inside surface of a clip. When a tablet PC is inserted into the frame 20, the outer surface of the flexible metal band 31 of the resilient compression means 30 pushes against the lateral edges of the tablet PC, thus holding it more firmly in place between the clips of clip pair 21. This arrangement can be repeated in other embodiments such as those that comprise two lateral clip pairs 21 and 23. Or, instead of a metal band, the resilient compression means 30 may be a strip of felt, a foam cushion, or other spongy material, for example.

A more elaborate resilient compression means 30 may comprise a platform 32 supported by springs 33 as shown in FIG. 5B. The platform 32 is depressed by the lateral edges of a tablet PC 3 as it is inserted into the frame 20 between the clip pair 21, said platform 32 being pushed against the resistance in the springs 33 which extend transversely from the interior surface of the clips of the clip pair 21.

Alternative Configurations for Adjusting Length of Cordage

FIG. 6 shows an alternative configuration for the apparatus 100, in which the adjustment means 14 is attached at the frame 20 instead of at the mounting means 11. Another way to describe this alternative arrangement is to say that the adjustment means 14 is attached to the opposite ends of the cordage 15 as compared to the arrangement depicted in the embodiment of FIG. 1. In FIG. 6, the hanger 12 remains attached to the connector element 13 in proximity to the mounting means 11, however, the hanger 12 is not rotatable. The cordage 15 extends from one end downwards from the hanger 12 and attaches at its opposite end to the adjustment means 14. The adjustment means 14 may comprise the end portions of a second horizontal rod 34 similar to the structure previously described as the hanger in the embodiment of FIG. 1. Said second horizontal rod 34 is attached to the frame 20 by a connector element 35 that has a thumbscrew as a tensioning element 16. Adjustment of the effective length of the cordage 15 for adjusting the position of the frame 20 relative to the position of the mounting means 11 is achieved as described for the embodiment of FIG. 1.

In another alternative configuration, illustrated in FIG. 7, the adjustment means 14 is a clamp, a barrel nut, a re-closable fastener, a buckle or similar strap adjustment assembly, or any other means for controlling the length of a looped cord or strap. The cordage 15 is attached to the hanger 12 fastened to the mounting means 11, and as the cordage 15 descends to the frame 20, it loops around a ring, pulley, peg or similar loop attachment element 36 on the frame 20, whereupon it extends upwards again to join with the adjustment means 14, which is manually positioned by the user of the invention at a desired location between the frame 20 and the hanger 12. The user may slide or move the adjustment means 14 higher or lower to adjust the effective length of the cordage 15, thereby adjusting the position of the frame 20 relative to the position of the mounting means 11.

Using the Invention to Mount a Tablet PC within an Automobile

FIG. 8 illustrates a perspective view of the apparatus 100 of the present invention holding a tablet PC 3 in the frame 20 while the mounting means 11 is attached to the interior surface of a windshield in an automobile. The adjustment means 14 is adjusted so that the frame 20 is situated at an appropriate location adjacent to the center console of the lower dashboard. The stabilizers 26 contact the lower part of the dashboard to hold the frame 20 in a stationary position and prevent lateral swinging. The contact between the stabilizers 26 and the lower dashboard is particularly apparent in FIG. 9, which is a side view of the apparatus 100 of the present invention holding a tablet PC 3 in the frame 20 while the mounting means 11 is attached to the interior surface of a windshield in an automobile.

FIG. 10 is a perspective view of the apparatus 100 mounted on the back of a car seat to be conveniently operable by a passenger behind the seat. The mounting means 11 comprises a pair of clasps attached to the two arms that support a headrest above the seat. The mounting means 11 is attached to the hanger 12 by a connector element 13, and the cordage 15 extends downwards from the hanger 12 to the frame 20. The frame 20 hangs at a position behind the seat back and is attached thereto by stabilizers 26. The stabilizers 26 are independently adjustable spacers, and the orientation of the frame 20 is maintained in a vertical plane despite the tilt of the seat, because the bottom spacers extend slightly farther than the top spacers from the rear surface of the frame 20.

Frame Size Variability

Tablet PCs range in sizes from approximately 5 (five) inches to approximately 10 (ten) inches in width, and between 3 (three) and 10 (ten) inches in height. The present invention accommodates size variability in several ways. First, the resilient compression means 30 may occupy any gap between the lateral edges of a tablet PC and the confining clips when said gap is less than approximately one inch wide. Alternative embodiments utilize an adjustable frame 20 in which each side of the frame 20 may slide relative to the other sides of the frame 20, as depicted, for example, in FIG. 11 and FIG. 12.

FIG. 11 shows a perspective view of a front surface of the apparatus 100 having a frame 20 with adjustable dimensions. Adjustability of frame dimensions in this embodiment is achieved by constructing the edges of the frame from slats 40, 41, 42, 43 with a central groove 44, 45, 46, 47 in each, wherein said central groove receives the threaded portion of a bolt, peg, or similar fastening means 48, 49, 50, 51. Said bolts have a flat surface and may be fastened to their respective slat by a nut 52, 53, 54, 55. One or more of the slats 41 and 43 may comprise two adjacent members sandwiched together by one or more guide elements 56 and 57, so that a second slat 58 and 59 is positioned above the first slat 41 and 43, respectively. The sandwiched slats, 41 and 58 on the one side, and 43 and 59 on the opposite side, slide over one another between the edges of the guide elements, 56 and 57, respectively. Extension of the sliding slats 41, 43, 58, 59 extends the length of the respective side of the frame 20, and retraction of said sliding members contracts the length of the respective side of the frame 20. Although not shown in FIG. 11, the other two sides of the frame 20 may also or alternatively comprise sliding slats. Clip pairs 21 and 22 are also shown extending from the front surface of the frame 20.

FIG. 12 is a perspective view of the rear surface of the apparatus 100 having the frame 20 with adjustable dimensions. Any of the slats 40, 41, 42, 43 may be constructed such that they are continuous with any of the clips, such as the clips of clip pairs 21 and 22. Both FIG. 11 and FIG. 12 depict four stabilizers 26, which in this embodiment are suction cup assemblies comprising a rod 60 attached to the slats 41 and 43 of the frame 20. Two rings 61 and 62 serve as attachment points for the cordage 15 and may be construed as equivalent to the loop attachment elements 36 of the embodiment shown in FIG. 7, above.

FIG. 13 illustrates how the sides of the frame 20 can be moved relative to each other to adjust the horizontal length and vertical height of the frame in a manner that enlarges the dimensions of the frame during use. The movement of the sides is accomplished without disassembling the frame 20; retaining bolts or their corresponding nuts (e.g., 48, 49), which pass through grooves (e.g., 44, 45, 46, 47) in the slats (e.g., 40, 41, 42, 43) that comprise the sides of the frame 20, are loosened slightly to permit the slat members to slide relative to each other, and then said bolts are re-tightened when the dimensions are established to the satisfaction of the user. The frame 20 would be attached to the cordage 15 (not shown) at eye-rings 61 and 62, for example. The slats are guided and positioned as they slide relative to each other via guides (e.g., 56 and 57). The “top side” of the frame 20, for example, would be considered as comprising slats 43 and 59. The large shaded arrow pointing upwards in the drawing represents motion of the top side of the frame 20 in the vertical direction. The large black arrow pointing leftwards represents motion of the left side of the frame 20 in the horizontal direction. The left side in this example comprises slat 42. Notice how the clips of the clip pairs 21 (horizontal clip pairs) and 22 (vertical clips), being attached to the various sides of the frame, are effectively moved away from each other as the frame expands, thus enabling the frame to accommodate a larger tablet PC or other device inside of it in a finely adjustable and continuously adjustable manner.

FIG. 14 illustrates how the sides of the frame 20 can be moved relative to each other to adjust the horizontal length and vertical height of the frame in a manner that reduces the dimensions of the frame during use. The movement of the sides is accomplished as described for FIG. 13. The “top side” of the frame 20 in this example, as in the previous example, comprises slats 43 and 59. The large shaded arrow pointing downwards in FIG. 14 represents motion of the top side of the frame 20 in the vertical direction. The large shaded arrow pointing rightwards represents motion of the left side of the frame 20 in the horizontal direction. Notice how the clips of the clip pairs 21 and 22, being attached to the various sides of the frame, are effectively moved towards each other as the sides are contracted, thus enabling the frame 20 to snugly accommodate a smaller tablet PC or other device inside of it in a finely adjustable and continuously adjustable manner.

Any of the various embodiments shown herein may borrow from any of the others, such that any of the various mounting means 11, adjustment means 14, types of cordage 15, arrangement of clip pairs 21, 22, 23, or 24, and methods for adjusting dimensions of the frame 20, for example, may be combined within any one embodiment of the apparatus 100. Although one specific example of an adjustable frame 20 is illustrated in the drawings herein, any of the methods known in the art for constructing an adjustable four-sided frame are contemplated for use in the present invention.

Subcombinations Comprising Integrated Mounting and Adjusting Means

As stated above, the mounting means 11 is connected to a hanger 12, either directly or via a connector element 13. The present invention achieves enhanced portability, ease of use, versatility, and other various advantages in that it allows for the inclusion of a subcombination apparatus comprising an integrated mounting means 11, hanger 12, and tensioning element 16, wherein said mounting means comprises, broadly, a suction cup assembly (110-112; FIGS. 15, 17-19B), said hanger comprises a rotatable rod 12 having spools 122 and 123 as adjustment means 14, and said tensioning element 16 comprises a shaft-locking means (132-134; FIGS. 20, 21) for preventing rotation of the rod 12. For lexicographical purposes, said subcombination apparatus shall be referred to herein as “a mounting and adjusting subcombination apparatus” 200 or simply the “subcombination apparatus” 200.

A front perspective view of a preferred embodiment of such a mounting and adjusting subcombination apparatus 200 is depicted in FIGS. 15 and 17. A central portion of the rod 12 is housed in a block 113 that is fixedly attached to a shell-like dome 110, where each of these pieces is preferably manufactured of a durable rigid material like plastic, such as from a mold or a 3-dimensional printer. In this arrangement, the block 113 may be considered a de facto connector element 13. The dome 110 has an aperture in its center through which passes a push-rod or dowel 115, said dowel 115 comprising a cylindrical body made of any rigid material (e.g., plastic, metal) having a knob, flathead, or other enlarged structure (“terminal knob”) 116 at its proximal terminus and being attached to a suction cup 112 at its distal terminus such that said suction cup 112 protrudes from the distal or concave side of the dome 110. These orienting labels are chosen to simplify this description, where “proximal” means towards or above the convex side of the dome 110 (and thus more proximal to the center of mass of the subcombination apparatus 200) and “distal” means towards or under the concave side of the dome 110 (and therefore more distal from the center of mass of the subcombination apparatus 200). The subpart comprising the dowel 115 and the suction cup 112, depicted by itself in FIG. 16, is movable independently of the other elements in the subcombination apparatus 200, particularly in that the dowel 115 and attached suction cup 112 may rotate freely clockwise and/or counterclockwise about the longitudinal axis of the dowel 115 as it sits within the aperture of the dome 110 while the lever 120 is open, as shown in FIGS. 15 and 19B where range of motion is represented by a shaded double-headed arrow in FIG. 15. The remainder of the subcombination apparatus essentially comprises another subpart or a second set of elements that are all attached to each other and therefore appear to rotate in unison around the axis of the dowel 115 when the suction cup 112 is attached to a surface in the environment and the lever 120 is open, as shown in FIG. 19B. This feature is important because rotation of said remainder (denoted hereinafter for simplicity as the “dome and rod portion of the apparatus”) causes the rod 12 to tilt longitudinally relative to whatever surface to which the suction cup 112 is attached; and, this longitudinal tilt of the rod 12 affects the positioning of the frame 20 suspended from the rod 12 by virtue of the cordage 15 attached to the spools 122 and 123, which is evident in FIG. 19B. In this way, clockwise or counterclockwise rotation of the dome and rod portion around the dowel 115 causes tilting of the rod 12 and thereby provides a means for making fine adjustments to the angle at which the rod 12 projects from the subcombination apparatus 200 while attached to a mounting surface and, consequently, for making adjustments in the orientation of the frame 20.

In a preferred embodiment as depicted in FIG. 16, the dowel 115 is fixedly attached at its distal end to a plate 109 (of metal, plastic, or other sturdy material) that comprises a means for stably affixing said suction cup 112 to said dowel 115, but any suitable means for attaching the dowel 115 to the suction cup 112 may be employed. Suction cup 112 is manufactured of rubber, plastic, or other flexible material suitable for performing one or more attachment functions known (presently or in the future) in the arts relevant to suction cups and equivalent fasteners. In preferred embodiments, the suction cup 112 is attached such that it does not rotate independently of the dowel 115, but alternative embodiments permit such rotation. At the proximal end of the dowel 115, which is the end opposite from the suction cup 112, the terminal knob 116 interfaces with a lift block 117 connected to a lever 120, as depicted in FIGS. 15 and 17, such that pushing down on the lever 120 causes the lift block 117 to engage the terminal knob 116 from the underside of the terminal knob 116, and then to lift it upwards (i.e., towards the proximal) from a fulcrum provided by side pins 118 rotating within pin mounts 119 that are attached to the dome 110 such that the dome 110 and the suction cup 112 are moved towards each other. When the lever 120 is fully closed (FIG. 17), the rim of the dome 110 is pressed tightly against a portion of the suction cup 112 and the resulting friction prevents any further rotation of these two elements relative to each other around the axis of the dowel 115. In preferred embodiments, an array of teeth 111 or other gripping means project distally from an edge or rim of the dome 110, said teeth 111 facing towards the suction cup 112, where said teeth 111 are preferably molded from or constituent in the same piece of material that comprises the dome 110. Said teeth 111 thus serve as a gripping means for facilitating the temporary attachment of the dome 110 to the suction cup 112 whenever pressure is applied to push the dome 110 outwards/downwards/distally along the axis of the dowel 115 and against the suction cup 112, such as when the lever 120 is depressed. By maintaining the dome 110 in this position of being firmly pressed against the suction cup 112 such that the teeth 111 impinge upon the material of the suction cup 112 while the suction cup 112 is stably attached to a mounting surface in the environment, the clockwise and counterclockwise rotation of the dome and rod subpart is prevented (with respect to reasonable amounts of applied torque) and thus the axial orientation of the rod 12 is temporarily fixed in a desired position, as depicted in FIGS. 19A and 19B. Various alternatives to “teeth” (angular protrusions) may substitute for the teeth 111 as the means for enabling the dome 110 to grip the suction cup 112 in this or an equivalent manner, such that the result is to reversibly fix the dome 110 and the suction cup 112 in abutment and to thereby reversibly allow or prevent rotation of the “dome and rod portion of the apparatus” around the dowel 115. FIG. 17 depicts the subcombination apparatus 200 with the lever 120 in a closed position while the suction cup 112 is stably attached to a glass surface (not shown), wherein the teeth 111 are pressed against the edge of the suction cup 112, thereby preventing rotation of the dome 110 and of the rod 12 around the dowel 115.

The lever 120 acts upon the proximal end of the dowel 115 via a lever assembly comprising said lever 120, two side pin mounts 119 holding side pins 118 serving as the fulcrum for the lever assembly, where said side pins 118 also intersect a lift block 117 that moves up and down in loose contact with the axis of the dowel 115 as the side pins 118 move up and down in their parallel tracks in their respective pin mounts 119. Thus, the lift block 117 conditionally engages the terminal knob 116 of the dowel 115. When the lever 120 is pushed from an open to a closed position, a part of its arm contacts and is deflected by the dome 110 which causes the side pins 118 to move upwards or proximally within the pin mounts 119 thereby carrying the lift block 117 correspondingly upwards or proximally to engage with the terminal knob 116, which is then itself pushed correspondingly upwards or proximally thereby transferring a pulling force along the dowel 115 to the suction cup 112. Whenever said suction cup 112 is stably attached to a stationary surface in the environment, this pulling force effectively pushes the dome 110 down the axis of the dowel 115 distally towards the suction cup 112 until it (and its teeth 111, if any) impinges directly against the suction cup 112. The side pins 118 may comprise screws with their heads on the outside of the pin mounts 119 and with their threaded portions passing through their respective channels in the pin mounts 119 and terminating in the lift block 117. The pin mounts 119 preferably comprise durable tabs (e.g., of plastic or metal) projecting from the proximal (convex) surface of the dome 110 and being fixedly attached thereto, by a glue for example, or as a single molded piece as part of the dome 110. In a preferred embodiment, each of said pin mounts 119 comprises a central channel in which one of the side pins 118 is confined such that said side pin 118 has freedom to move short distances through the channel in directions parallel or anti-parallel to the orientation of the axis of the dowel 115. When the lever 120 is open (FIG. 15) the side pins 118 rest in the channels of the pin mounts 119 at positions nearer to the dome 110; conversely, when the lever 120 is closed (FIG. 17), the side pins 118 rest in the channels of the pin mounts 119 at positions farther away from the dome 110. As the lever 120 is moved from its open to its closed position, the “dome and rod portion of the apparatus” is effectively pushed pushed downwards or distally along the axis of the dowel 115 by virtue of the lift block 117 impinging upon the terminal knob 116, and, by virtue of the side pins 118 having freedom to slide away from the dome 110 inside the channels of the pin mounts 119. When the lever 120 is fully closed or locked, the teeth 111 are pushed against the suction cup 112 with the maximum available force and rotation of the dome and rod portion of the apparatus is effectively prevented. When the lever 120 is substantially or fully open, this condition allows for the dome and rod portion of the apparatus to both rotate around the dowel 115 and move alternately upwards/proximally and downwards/distally along the axis of the dowel 115 (albeit over a very short distance of roughly 0.25 to 1.0 inches, depending on the length of the dowel 115, the thickness of the lift block 117, the range of the side pins 118 within the pin mounts 119, and other structurally limiting factors in particular models/embodiments). Other means, including motorized means, for applying upwards or downwards force upon the dowel 115 may be employed in other embodiments according to any means known in the art for moving two subparts of an apparatus towards and/or away from each other.

FIG. 18 shows the same embodiment of subcombination apparatus 200 from a rear perspective view, providing a more direct view of the connector element or block 113. Here, block 113 is substantially shaped as a cube approximately 0.25 to 1.0 inches long on each side, although any shape is permissible, which block 113 is substantially hollow and adapted to house a shaft-locking means within it. An access plate 114 can be reversibly attached to one or more sides of said block 113 to permit assembly of or access to the inner mechanism comprising the shaft-locking means (see FIGS. 20 and 21, explained below). Said access plate 114 is depicted as a single panel of the block 113 but may comprise multiple panels or even an entire the top half portion of the block 113. The block 113 has an aperture in each of its two lateral side walls through which the rod 12 passes and in which the rod 12 may rotate unimpeded. In some embodiments, the lateral side walls of the block 113 do not comprise mere holes as said apertures, but rather they comprise hollow tubes or barrels 121 that extend outwards from the block 113 to create elongated apertures or “sleeves” that help stabilize the rod 12 and guide its rotation about its longitudinal axis (where said rotation is represented by the semicircular double-headed arrow in FIG. 18), which axis projects longitudinally through the approximate center of the block 113. These sleeves 121 may be fashioned from the same piece of material as the block 113 (as when made from a single mold or manufactured using a 3D printer) and may be located partially or wholly on the access plate 114. At either end of the rod 12, a spool 122 and/or 123 serves as an adjustment means 14 for adjusting the length of the cordage 15 that extends between the hanger 12 and the frame 20, where each of said spools is attached to an end portion of the cordage 15 as described for previously presented embodiments (e.g., FIG. 1) and as depicted in FIGS. 19A and 19B. A rear wall and/or other side of the block 113 may be adapted or elongated to affix it securely to the dome 110, and in preferred embodiments the block 113 (minus its access plate 114) is formed or molded from the same piece of material as the dome 110, for example as if created from a 3D printer.

FIG. 20 is a plan view of the rear side of an inverted mounting and adjusting subcombination apparatus 200 as if the embodiment shown in FIG. 18 had been flipped 180 degrees clockwise. FIG. 21 is a partial section view from a left-hand perspective of the same structure, not necessarily drawn to scale, depicting the shaft-locking means for reversibly preventing and allowing rotation of the rod 12 about its longitudinal axis. The portion of the rod 12 passing through the block 113 comprises a plug 133 having a shape complementary to a plug receptor 134, said plug receptor 134 being attached not to the rod 12 but instead to the block 113 (preferably as a shape or sconce molded into the inwards-facing surface of one or more side walls of the block 113). The plug 133 on the rod 12 may physically engage the plug receptor 134 in a key-in-lock type of geometric alignment. When so engaged, the plug 133 cannot rotate within the plug receptor 134 and therefore the rod 12 may not rotate around its longitudinal axis. Said engagement is caused to occur by the application of a force to the rod 12, for example, when a person pushes laterally against an end of the rod 12 or when an internal spring 132 (explained below) pushes the rod 12 in a direction parallel to its longitudinal axis such that the attached plug 133 is pushed into the plug receptor 134 of the block 113. When the plug 133 engages the plug receptor 134, their geometric complementarity prevents them from rotating relative to each other which in turn prevents the rod 12 from rotating in its housing in the block 113. For example, the plug 133 may have a star-like or gear-like shape with spokes extending from a central body that have been fabricated to fit snugly into complementary apertures in the one or more sidewalls of the block 113 comprising the plug receptor 134, as indicated in FIGS. 20 and 21. Any other suitable geometries, including one or more of a peg and a hole, may be employed for making the plug 133 complementary to the plug receptor 134 in this manner. In preferred embodiments, this shaft-locking means also comprises a spring 132 wound around the axis of the rod 12, in particular around the portion of the rod 12 passing through the block 113, where a first end of the spring 132 abuts an internal wall or edge of the block 113 opposite from the plug receptor 134 and a second end of the spring 132 abuts the plug 133. In FIGS. 20 and 21, said first end of the spring 132 abuts the inside surface of the access plate 114 (which is shown in a partially disassembled configuration where the access plate 114 has been removed and shifted leftwards from the block 113 as represented by the unshaded double arrow in FIG. 20) while said second end of said spring 132 is shown impinging upon the plug 133. Thus, the spring force pushes from a first side of the block 113 opposite from the location of the plug receptor 134, towards the plug 133 and towards the plug receptor 134, such that the spring 132 pushes the plug 133 into the plug receptor 134 when properly aligned geometrically. Proper alignment is achieved in most embodiments by rotating the rod 12 around its longitudinal axis (which rotates the plug 133 in tandem) until the spokes or other shape of the plug 133/receptor 134 combination are in a complementary juxtaposition suitable for engagement. To disengage this shaft-locking means, a person or a motor or other mechanism pulls on the end of the rod 12 such that the plug 133 is pulled away from the plug receptor 134, which incidentally is to pull opposite the direction of the spring force in embodiments that comprise a spring 132. Alternatively and/or additionally, the shaft-locking means may be configured in the converse such that pushing on an end of the rod 12 achieves the disengagement. The lateral motion of the rod 12 parallel to its longitudinal axis is represented by the shaded double-headed arrow in FIGS. 18 and 20. This feature, the shaft-locking means, is preferably employed where the spools 122 and 123 do not rotate independently of the rod 12, but such is not essential to the functionality of the apparatus as a whole; other arrangements in which said spools have independent motion are considered to be within the scope of the present invention.

A method that a person may use to mount the various tablet PC holder apparatuses of the present invention to a surface in the environment using the subcombination apparatus 200 (to create the configurations illustrated in FIGS. 19A and 19B, for example) comprises a first step of attaching the suction cup 112 to the target surface while the lever 120 is fully open. Before closing the lever 120, the suction cup 112 can be attached and reattached to the target surface until the most desirable mounting position is achieved, as is commonly done with any suction cup or equivalent fastener known in the art. The attachment and reattachment of the suction cup 112 may be facilitated by directly pushing or pulling on the dowel 115, such as by pushing or pulling on the terminal knob 116. Next, the person grips the dome 110 and gently rotates it around the dowel 115 until the longitudinal tilt of the rod 12 is satisfactorily aligned relative to the chosen mounting position and user preferences. Then the person closes the lever 120 to fix the rod 12 in this final angular position, and next the person pulls axially on the end of the rod 12 to disengage the shaft-locking means, allowing the rod 12 to rotate along its longitudinal axis while housed in the block 113, and then the person further proceeds to rotate the rod 12 a sufficient number of revolutions until the desired effective length of the cordage 15 is achieved. After this, the person adjusts the axial rotation state of the rod 12 so that the plug 133 aligns with the plug receptor 134, and finally the person allows the spring 132 (or pushes/pulls directly on the end of the rod 12 when no spring is present) to cause the plug 133 to engage the plug receptor 134. At any time before and after these steps, the length of the cordage 15 descending from the rod 12 may be adjusted to place the frame 20 in a desired final location relative to the mounting position of the apparatus 200, and the dome 110 can be re-adjusted and rotated slightly to finely control the tilt angle of the rod 12, and other adjustments can be made as described for the various other embodiments of the present invention. Thus, a quick and convenient means for making multiple adjustments to the placement and positioning of the apparatus 100 of the present invention can be provided by a simple, lightweight, durable, single integrated piece corresponding to the subcombination apparatus 200. However, the utility of the subcombination apparatus 200 is not limited to use with the present invention 100, and it may be incorporated into any other separate and distinct composition of matter where its integrated mounting and adjusting features are desired.

The concept of the shaft-locking means may also be applied to the dowel 115 to provide a dowel-locking means for reversibly allowing and preventing rotation of the dome and rod portion of the apparatus around the dowel 115. FIG. 22 illustrates an embodiment of the subcombination apparatus 200 in which a plug 133 is attached to the body of the dowel 115 (preferably on the underside of the terminal knob 116) and a plug receptor 134 is provided in the lift block 117. Thus, when the lever 120 is depressed the lift block 117 moves towards the plug 133 and causes it to engage the plug receptor that exists on the lift block 117. Once engaged, the dowel-locking means provides a second restraint on the ability of the subpart comprising the dowel 115 and suction cup 112 to rotate, where the first restraint remains, as described above, in the friction produced at the point of contact between the teeth 111 of the dome 110 and the suction cup 112.

Waterproofing and Ruggedizing Modifications

Because the present invention is suitable for mounting the apparatus 100 in marine environments and other outdoor applications, for example for using an apparatus of the present invention to mount a tablet PC from the windshield of a boat, it is advantageous to provide extra waterproofing means for protecting the tablet PC or other mounted device from salt water, concussions, vibrations, and the elements in general. Products exist in the prior art for encasing tablet PCs and other devices in various cushioning and waterproofing sleeves or containers, including for example, the Joy Factory Bubbleshield and the Dry Case waterproof vacuum sealed container, which can be used with most preferred embodiments of the apparatus of the present invention. In these examples, a person using the mounting apparatuses of the present invention may enclose a Tablet PC 3 in such a waterproofing or cushioning container and then insert the wrapped device into the frame 20 between clip pairs 21 and 22 as would be performed when inserting an unwrapped device. Alternative embodiments of the present invention provide plastic panel shields or coverings prefabricated to fit around the clips and frame 20 so that the mounting apparatus 100 itself can be substantially shielded, enclosed, or wrapped in protective material without requiring that the tablet PC 3 or other device itself be directly wrapped. In one embodiment providing extra weatherproofing capabilities, the weatherproofing means comprises one or more clear plastic panels that are attached as a separate component over and around the underlying apparatus 100 and/or 200. In other embodiments, said extra weatherproofing can be prefabricated into the frame of the apparatus as an extension of one or more sides of the frame 20 or as enlarged clips adapted from clips pairs 21 and 22, preferably comprising clear plastic clips that cover and/or enclose substantially the entire mounted tablet PC or device while inserted into the frame 20. A sealable top cover or side cover on the frame 20 can be opened or closed to permit the device to be inserted and removed from the apparatus in those embodiments. Furthermore, shock absorbing means may be included in the clips (one example of which is illustrated in FIGS. 5A and 5B, elements 30 and 31). Additionally or alternatively, enhanced shock absorbing and ruggedizing features may be included in the stabilizer attachment means 26.

It should be emphasized that the above described embodiments of the present invention exemplify some, but not all, possible implementations of the present invention and have been set forth in order to provide a clear understanding of its qualities. Those skilled in the art will appreciate that the conception upon which this disclosure is based may readily be utilized as a basis for designing of other structures, methods, and systems for carrying out the several purposes of the present invention. The following claims should be regarded as encompassing equivalent and various constructions insofar as they do not depart from the spirit and scope of the methods and devices consistent with the present invention. 

I claim:
 1. An apparatus for mounting a tablet personal computer or other portable electronic device, the apparatus comprising: a mounting means connected to a hanger by a connector element, wherein the hanger comprises a rod and wherein said connector element comprises a block, wherein said block comprises a means for holding the rod so that the rod passes through one or more apertures in said block so that said rod is rotatable about its longitudinal axis and a central portion of the rod is housed inside a substantially hollow area of the block, wherein said mounting means comprises a dome fixedly attached to said connector element and a suction cup attached to a distal end of a dowel that passes through an aperture in said dome so that said dome substantially covers said suction cup and said dowel rotates about its longitudinal axis, and wherein said dowel comprises a terminal knob at a proximal end of said dowel, and wherein said terminal knob engages a lift block connected to a lever assembly attached to said dome so that pushing down on a lever of said lever assembly causes said lift block to engage and push against said terminal knob so that said suction cup is drawn towards said dome until said dome abuts said suction cup substantially tightly; and wherein the apparatus further comprises cordage descending vertically from the rod and attaching to a four-sided frame, said cordage having an effective length corresponding to a distance between the hanger and the frame; an adjustment means for adjusting the effective length of the cordage, the adjustment means comprising two spools, one of said spools residing near each of two ends of the rod, where each of said spools is attached to an end portion of the cordage; at least one horizontally oriented pair of clips, comprising two opposing clips for holding the tablet personal computer or other portable electronic device between them, said horizontally oriented pair of clips being attached on opposite lateral sides of the frame; at least one vertically oriented clip for supporting a bottom edge of the tablet personal computer or other portable electronic device, said vertically oriented clip being attached to the bottom side of the frame, and, a reversible shaft-locking means alternatively preventing and allowing rotation of the rod about its longitudinal axis.
 2. The apparatus of claim 1, wherein said dome further comprises a means for gripping said suction cup when said dome abuts said suction cup.
 3. The apparatus of claim 2, wherein said means for gripping comprises a series of teeth projecting from a rim of said dome.
 4. The apparatus of claim 1, wherein the reversible shaft-locking means comprises a plug attached to the rod and a plug receptor attached to the block of the connector element, wherein the plug receptor is shaped complementary to the plug, such that sliding an end of the rod towards the plug receptor causes the plug to engage the plug receptor and thereby prevents rotation of the rod about its longitudinal axis when the plug attached thereto is engaged with the plug receptor, and such that sliding said end of the rod away from the plug receptor causes the plug to disengage from the plug receptor and thereby permits rotation of the rod about its longitudinal axis.
 5. The apparatus of claim 4, further comprising a spring, a portion of the rod passing through the longitudinal axial center of said spring, wherein a first end of said spring abuts an inside surface of said substantially hollow area of said block and a second end of said spring abuts the plug, such that said spring directs force from the inside edge of said substantially hollow area of said block to the plug, thereby pushing the plug towards the plug receptor.
 6. The apparatus of claim 1, further comprising a reversible dowel-locking means for alternatively preventing and allowing rotation of the dowel about its longitudinal axis, said dowel-locking means comprising a plug attached to the dowel near the proximal end of the dowel and a plug receptor attached to the lift block, wherein the plug receptor is shaped complementary to the plug, such that closing the lever of the lever assembly pushes the plug receptor of the lift block against the plug of the dowel causing the plug to engage the plug receptor and thereby preventing rotation of the dowel about its longitudinal axis, and such that opening the lever of the lever assembly disengages the plug from the plug receptor and thereby permits rotation of the dowel about its longitudinal axis.
 7. The apparatus of claim 1, further comprising one or more sleeves extending laterally outwards from the one or more apertures in said block and projecting parallel to the longitudinal axis of the rod, wherein said sleeves comprise a hollow interior that effectively extends said substantially hollow area of said block such that said sleeves substantially surround and stabilize the rod of which a portion is housed inside said substantially hollow area of said block.
 8. The apparatus of claim 1, further comprising one or a plurality of stabilizers attached to a rear surface of the frame.
 9. The apparatus of claim 1, wherein the length of one or more sides of the frame is adjustable.
 10. A subcombination apparatus of a mounting apparatus which combines integrated mounting and adjusting means, the subcombination apparatus comprising: a mounting means connected to a hanger by a connector element, wherein the hanger comprises a rod and wherein said connector element comprises a block, wherein said block comprises a means for holding the rod so that the rod passes through one or more apertures in said block such that said rod is rotatable about its longitudinal axis and a central portion of the rod is housed inside a substantially hollow area of the block, wherein said mounting means comprises a dome fixedly attached to said connector element and a suction cup attached to a distal end of a dowel that passes through an aperture in said dome so that said dome substantially covers said suction cup and said dowel rotates about its longitudinal axis, wherein said dowel comprises a terminal knob at a proximal end of said dowel, and wherein said terminal knob engages a lift block connected to a lever assembly attached to said dome so that pushing down on a lever of said lever assembly causes said lift block to engage and push against said terminal knob so that said suction cup is drawn towards said dome until said dome abuts said suction cup substantially tightly; and a reversible shaft-locking means alternatively preventing and allowing rotation of the rod about its longitudinal axis; and cordage descending vertically from the rod and attaching to one or more separate objects that a person desires to adjustably mount to or suspend from a surface via said subcombination apparatus, said cordage having an effective length corresponding to a distance between the hanger and the one or more separate objects.
 11. The subcombination apparatus of claim 10, further comprising an adjustment means for adjusting the effective length of the cordage, the adjustment means comprising two spools, one of said spools residing near each of two ends of the rod, where each of said spools is attached to an end portion of the cordage.
 12. The subcombination apparatus of claim 10, wherein the dome further comprises a means for gripping said suction cup when said dome abuts said suction cup.
 13. The subcombination apparatus of claim 12, wherein said means for gripping comprises a series of teeth projecting from a rim of said dome.
 14. The subcombination apparatus of claim 10, wherein the reversible shaft-locking means comprises a plug attached to the rod and a plug receptor attached to the block of the connector element, wherein the plug receptor is shaped complementary to the plug, such that sliding an end of the rod towards the plug receptor causes the plug to engage the plug receptor and thereby prevents rotation of the rod about its longitudinal axis when the plug attached thereto is engaged with the plug receptor, and such that sliding said end of the rod away from the plug receptor causes the plug to disengage from the plug receptor and thereby permits rotation of the rod about its longitudinal axis.
 15. The subcombination apparatus of claim 14, further comprising a spring, a portion of the rod passing through the longitudinal axial center of said spring, wherein a first end of said spring abuts an inside surface of said substantially hollow area of said block and a second end of said spring abuts the plug, such that said spring directs force from the inside edge of said substantially hollow area of said block to the plug, thereby pushing the plug towards the plug receptor.
 16. The subcombination apparatus of claim 10, further comprising a reversible dowel-locking means for alternatively preventing and allowing rotation of the dowel about its longitudinal axis, said dowel-locking means comprising a plug attached to the dowel near the proximal end of the dowel and a plug receptor attached to the lift block, wherein the plug receptor is shaped complementary to the plug, such that closing the lever of the lever assembly pushes the plug receptor of the lift block against the plug of the dowel causing the plug to engage the plug receptor and thereby preventing rotation of the dowel about its longitudinal axis, and such that opening the lever of the lever assembly disengages the plug from the plug receptor and thereby permits rotation of the dowel about its longitudinal axis.
 17. The subcombination apparatus of claim 10, further comprising one or more sleeves extending laterally outwards from the one or more apertures in said block and projecting parallel to the longitudinal axis of the rod, wherein said sleeves comprise a hollow interior that effectively extends said substantially hollow area of said block such that said sleeves substantially surround and stabilize the rod of which a portion is housed inside said substantially hollow area of said block. 